ASTROSAT CZTI

Data Quality Report

Orbit 46285

Creation date: 2024-06-27T23:21:15.654371
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_072T01_9000006192_46285cztM0_level2.fits modeM0/AS1A13_072T01_9000006192_46285cztM0_level2_quad_clean.evt
Size (bytes)453,035,520112,996,800
Size432.0 MB 107.8 MB
Events in quadrant A5,881,874751,247
Events in quadrant B4,013,113783,608
Events in quadrant C2,985,660748,225
Events in quadrant D3,381,330682,300

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214111
B0163601
C0134661
D0146171

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65461912.917812%
B65461041.588756%
C6547640.977547%
D65471081.649611%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7686 6547 9 9 0.12% 0.14%
B 7686 6547 7 7 0.09% 0.11%
C 7687 6548 3 3 0.04% 0.05%
D 7687 6548 52 52 0.68% 0.79%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 2932576 18806.0 758 742 155.9
A 13 254 11345 68.01 758 742 155.9
A 2 79 9712 57.54 758 742 155.9
B 3 112 887355 6060.52 753 731 146.3
B 0 190 91649 621.47 753 731 146.3
B 5 255 20384 134.34 753 731 146.3
C 12 2 37182 209.49 746 750 173.9
C 2 14 31740 178.2 746 750 173.9
C 14 67 7151 36.81 746 750 173.9
D 13 249 276854 1493.68 746 722 184.9
D 1 52 111557 599.54 746 722 184.9
D 2 249 89497 480.21 746 722 184.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter